Quantum coherent control of two-photon transitions by square phase-modulation |
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Authors: | Zhang Shi-An Wang Zu-Geng and Sun Zhen-Rong |
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Institution: | State Key Laboratory of Precision Spectroscopy,
\Department of Physics, East China Normal University, Shanghai 200062,
China |
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Abstract: | A femtosecond laser pulse can be tailored to control the two-photon
transitions using the ultra-fast pulse-shaping technique. This paper
theoretically and experimentally demonstrates that two-photon
transitions in molecular system with broad absorption line can be
effectively controlled by square phase-modulation in frequency
domain, and the influence of all parameters characterizing the
square phase-modulation on two-photon transitions is systemically
investigated and discussed. The obtained results have potential
application in nonlinear spectroscopy and molecular physics. |
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Keywords: | two-photon transitions coherent
control pulse shaping |
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